Embroidering-machine shuttle.



1. GRANZ.

EMBROIDERING MACHINE SHUTTLE. APPLICATION FILED SEPT. I6. 1914.

Patented Muy14, 1918.

WWTF@ STATES FATENT FFCE@ JOSEF GRANZ, OF PLAUEN, GERMANY, ASSIGNOR TO VOGTLNDISCHE MASCHINEN- FABRIK, OF PLAUEN, GERMANY.

EIiBROIDERING-MACHINE SHUTTLE.

Specification of Letters Patent.

rammen May ii, reis.

Application filed September 16, 1914. Serial No. 862,054.

To ZZ fui/ont t muy concern.'

Be it known that l, Josnr GuANz, a subject of the German Emperor, residing at Plauen, in ogtland, in the Kingdom of Saxony, Germany, have invented certain new and useful improvements in Embroidfiring-Machine Shuttles, of which the followingl is a specification.

The present invention relates to embroidering machine shuttles of the lrind described and shown in the United States Patent No. 1.082.l56, issued Dec. Q3, 1913, and has for its object to improve its construction, so that while in operation it will remove from the shuttle bed the refuse or dirt formed by fibers, dust and oilaccumulatingthereon and thus always maintain the bearing surfaces clean and smooth.

l accomplish my object by providing the bearing surface of the shuttle with a recess or opening having outer sharp edges which are adapted during the movement of the shuttle to shove the refuse off the raceway or bed or gather it up into said opening.

Particularly with shuttle having its bearing surface formed at a right angle to the covered lling opening which is directed toward the stitch plate, the evil resulting from accumulation of dirt on the bed and bottom of the shuttle becomes very noticeable.

l/Vith a shuttle in which the filling opening is arranged at the bottom, the outer edges surrounding the said. opening and forming the bearing edges remove the dirt, and prevent its accumulation. But a shuttle that bears on the bed with a solid surface instead of cleaning the bed, spreads the dirt over it.

' This is very objectionable and the removal of the dirt when using the shuttles of the type above referred to presents a comparatively diflicult problem, which is solved by the present invention.

ln the accompanying drawing, which forms part of my invention and in which similar' reference characters denote corresponding parts, Figure l is a bottom plan view of a. shuttle constructed in accordance with my invention; Fig. 2 is a cross section thereof; Fig. 3 is a similar view as Fig. l of a modified structure; Fig. lis a side elevation thereof, showing the depth of the groove or recess in the bearing or bottom surface; F ig. 5 is a bottom plan view of another modication, Figs. 6 and 7 are bottom plan views of further modifications; Fig 8 is a vertical longitudinal section of the modified shuttle shown in Fig. 6 and Fig. 9 is a si1nilar section of a further modification.

Referring specifically to the drawing and particularly to Figs. l and 2 a denotes a shuttle which is constructed and arranged substantially as that of the above-named patent. u denotes the bearing or bottom surface formed by one of the solid walls of the shuttles, while the filling opening a2 closed by the cover a3 arranged at the side or at a right angle to said surface to be directedwhen in use toward the stitch plate Z. Thesole or bottoni a is provided with a groove or recess a* arranged midway between the ends of the shuttle and extending crosswise throughout the entire width of the bottom a. The edges a5 are adapted during the movement of the shuttle to gather up and throw olf the dirt from the shuttle bed. lVhile the outer edges a6 surrounding the sole or bottom of the shuttle must not be sharp, but more or less rounded, lest the needle thread be cut when the shuttle passes through the loop, the edges a5 being located on the inside do not aifect the thread and are therefore made sharp in order to more effectively remove the dirt.

In the modification according to Figs. 3 and 4 the recess al narrows down from the sides or edges a5 toward the longitudinal central line, forming dart-shaped sharp edges c. These edges will not only remove the dirt from the shuttle bed but at the same time also shove it outwardly.

In the modification according to Fig. 5 the recess e has sharp curved edges e and dart-shaped edges e2.

In the modiiications according to Figs. (S and 7 the bottom or sole a of the shuttle instead of being solid is provided with a longitudinal opening ,f which like in the former type of shuttles forms a sharp angular edge f that constitutes the bearing surface of the shuttle. In Fig. 6 the forward end f2 of the edge f is more or less curved, while in Fig. 7 the end f3 is pointed. The edge serves also to gather up the dirt into the opening f. A

On its inside the opening may be covered by a thin metal sheet or plate g (Figs. 6 and 8) to prevent the bobbins from slipping out through the opening f and coming in contact with the shuttle bed.

In the modification. according to Fig. 9 the. opening h in the bottom a of the shuttle is provided with an inwardly projecting iange '21 on Which the bobbin b .is adapted to rest. This flange serves primarily the object to hold the hohhin b at a sutlicient distance from the shuttle bed, Without using the plate g (Figs. 6 and 8) and secondly to provide a deeper space to be capable of gather ing up more dirt, and thereby avoiding the repeated cleaning of the shuttle.

lVhat I cla-ini and desire to secure by Letters Patent is:

An enibroidering machine shuttle the hearing surface of which has an opening servbearing surface than the thickness of the shuttle Wall and to deepen the said chamber. In testimony whereof I aiiiX my signature in presence oi' two Witnesses.

JOSEF GRANZ.

Witnesses:

JOSEPH MLEHLE, ROBERT H. Ninn.

Copies ofthis patent may be obtained for five cents catch,` by addressing the Commissioner of Patents,

Washington, D. C. 

